NEET UG 2020 · Zoology · Question 22
NEET 2020 Zoology, question 22
Question 22 of the NEET 2020 paper (code E1) is a Zoology question from Biotechnology: Principles and Processes. Its idea, Mechanism of DNA Cleavage, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 4.
Updated 2026-10-08
Q22 · Zoology
Identify the wrong statement with regard to Restriction Enzymes.
- 1Each restriction enzyme functions by inspecting the length of a DNA sequence.
- 2They cut the strand of DNA at palindromic sites.
- 3They are useful in genetic engineering.
- 4Sticky ends can be joined by using DNA ligases.Official answer
Official answer: option 4 · NTA final answer key
Same idea
The only question on Mechanism of DNA Cleavage
No other NEET paper from 2017–2026 tested this exact idea.
Mechanism of DNA Cleavage: every question and how it was framed
The chapter
Biotechnology: Principles and Processes in ten years of NEET
46 questions from 2017–2026, asked in 10 of 10 papers, about 4.4 a paper. Restriction Enzymes alone had 22.